Adaptive path for additive manufacturing using a laser source

Abstract

A method (P) for determining trajectory followed by a laser beam for selective additive manufacture of a three-dimensional object comprises: a) determining, on a predetermined reference path (T), a plurality of reference points (T), b) determining a plurality of adjacent points (T) located on the same side of the reference path, each adjacent point (T) being associated with a reference point (T) and being such that a simulated adjacent melt zone that surrounds said adjacent point (T) and a simulated reference melt zone that surrounds the reference point (T) have an overlap corresponding to a fraction of a transverse width of the simulated reference melt zone that is comprised between a predetermined minimum fraction (αmin) and a predetermined maximum fraction (αmax), c) determining an adjacent path (T) passing through the plurality of determined adjacent points, and d) iterating steps a) to c) using the adjacent path, defined as a new reference path, so as to determine, on each iteration, a new adjacent path, all of the adjacent paths thus determined defining the trajectory.